The cloud isn’t the future anymore — it’s the present. By 2026, over 85% of organizations have moved at least some of their operations to cloud platforms. But here’s what nobody advertises: moving to the cloud doesn’t automatically make you more secure. In many cases, it makes you less secure — if you do it wrong.

We’ve helped dozens of organizations migrate to the cloud — and we’ve also been called in to clean up migrations that went sideways. The mistakes are almost always the same. Here are the seven that cause the most damage.

This is the most dangerous misconception in cloud computing. When you move to AWS, Azure, or Google Cloud, the provider secures the infrastructure — the physical servers, the data centers, the network backbone. But everything you put on that infrastructure? That’s your responsibility.

Your data, your configurations, your access controls, your encryption — all you. This is called the shared responsibility model, and misunderstanding it is the root cause of a staggering number of cloud breaches.

“Lift and shift” — taking your existing systems and moving them to the cloud as-is — is the fastest migration approach. It’s also the riskiest. Legacy systems often have outdated security configurations that were acceptable behind a corporate firewall but are dangerously exposed in a cloud environment.

Before you move anything, audit it. Review configurations. Check for hardcoded credentials. Test access controls. The cloud amplifies everything — including your existing security gaps.

In the cloud, identity is the new perimeter. If someone has the right credentials, they can access your systems from anywhere in the world. Yet organizations routinely migrate to the cloud with weak password policies, no multi-factor authentication, and admin accounts shared among multiple people.

Every cloud account needs MFA. Every user needs role-based access. Every admin account needs to be individually assigned and monitored. No exceptions.

Where does your data physically live? If you handle student data (FERPA), health data (HIPAA), or government data (CMMC/NIST), the answer matters — a lot. Cloud providers have data centers worldwide, and unless you explicitly configure your environment, your data might end up in a region that violates your compliance requirements.

Know your compliance obligations before you migrate. Configure data residency rules. Document everything. Auditors will ask.

One of the most persistent myths in IT: “It’s in the cloud, so it’s backed up.” No. Cloud platforms provide high availability — meaning your data is replicated across servers for uptime. But if someone deletes a file, overwrites data, or a ransomware attack encrypts your cloud storage, that replication faithfully copies the damage.

You still need independent backups. The 3-2-1 rule applies to cloud data exactly the same way it applies to on-premise data. Three copies. Two different media. One offsite.

Out of sight, out of mind — that’s how many organizations treat their cloud environments after migration. They set it up and walk away. No logging. No alerts. No visibility into who’s accessing what, when, and from where.

Cloud environments generate massive amounts of telemetry. If you’re not capturing and analyzing it, you’re flying blind. Enable audit logging on every service. Set up alerts for anomalous activity. Review access logs regularly.

What happens if you need to leave your cloud provider? What if they raise prices 300%? What if they discontinue a service you depend on? What if a compliance requirement forces you to move?

Vendor lock-in is real. If your entire operation depends on proprietary cloud services with no documented exit plan, you’re trapped. Plan for portability from day one. Use open standards where possible. Maintain exportable backups. Know what it would take to move.

The cloud is powerful. It reduces costs, increases flexibility, and enables capabilities that weren’t possible with on-premise infrastructure. But it’s not magic, and it’s not automatically secure.

A successful migration requires planning, security review, and ongoing vigilance. Skip these steps, and you’ll end up spending more to fix problems than you saved by moving to the cloud in the first place.

Do it right the first time. Your data — and your reputation — depend on it.